Quick overview
This workflow takes a public YouTube channel or video link, queries YouTubeThumb.com for available channel banner and profile image URLs, and optionally downloads the largest banner image as a file.
How it works
- Runs manually when you click Test workflow.
- Sets the YouTube URL or @handle to look up.
- Calls the YouTubeThumb.com channel-images endpoint to retrieve the channel’s available banner and avatar image sizes.
- Checks whether the lookup succeeded and returns an error message if it fails.
- Selects the largest banner and avatar by image area and outputs the full lists of banners and avatars.
- If a banner URL is available, downloads the largest banner JPG via YouTubeThumb.com’s channel-image-file proxy.
Setup
- Open the Set YouTube URL node and replace the sample @YouTube value with the public channel handle, /channel/ URL, or watch URL you want to inspect.
- Confirm your n8n instance can make outbound HTTPS requests to youtubethumb.com. No API key, login, or paid credential is required for this lookup.
- Click Test workflow. Review the Code node JSON for banners and avatars. If the channel published header art, the last HTTP node returns the largest banner as a JPG file; if it did not, that download step is skipped on purpose.